Gemello W15 - Twin Skin Wall System
Verified by manufacturer 2 days ago
Insulated twin skin wall system.
Application
Metal profiled/ flat sheet cladding/ covering for wall applications.
Description
A site assembled wall system with a profiled metal lining sheet, bar and bracket spacer system, insulation and profiled metal outer sheet.
Features and benefits:
- Provides robust weather protection with its twin-skin construction, combining coated galvanized steel sheets and high-quality non-combustible insulation.
- Class A1 to BS EN 13501-1 glasswool or rockwool insulation.
- Enhanced thermal efficiency.
- Improved fire and acoustic performance.
- Firewall available on request.
- Wide range of colours and finishes.
- Available in a range of coatings.
- Fully integrated, warrantied system.
- Suitable for multiple building types.
- To BS 5427:2016+A1:2017 Code of practice for the use of profiled sheet for roof and wall cladding on buildings.
System Warranty:
Gemello® 30, 30 years, A4 (316) stainless steel fixings.
Gemello® 25, 25 years, A2 (304) stainless steel fixings.
Coating Warranty:
Colorcoat HPS200 Ultra®, up to 40 years*.
Leathergrain Plastisol, up to 30 years*.
Colourcoat Prisma®, up to 40 years*.
*Subject to project location*
A4 (316) Stainless steel fixings for coastal locations.
Gemello® Warranty references consist of both the system and external coating warranty periods. i.e. Gemello® 25/30: 25 year system warranty, up to 30 year material coating warranty.
General information
Color | Grey Other |
Finish | Plastisol Guidance for specification option: Plastisol/ polyester. Leather effect Guidance for specification option: Leathergrain effect. |
Material | Steel Guidance for specification option: Coated galvanized steel. Stone wool Glass mineral wool |
Shape | Trapezoid |
Length | Bespoke |
Width | 990 mm Guidance for specification option: Minimum value. 1000 mm Guidance for specification option: Maximum value. |
Height | 20 mm Guidance for specification option: Minimum value. 35 mm Guidance for specification option: Maximum value. |
Warranty description | 25 year Guidance for specification option: A2 (304) stainless steel fixings. 30 year Guidance for specification option: A4 (316) stainless steel fixings. |
Uniclass | |
CAWS | H31/10 Metal H31/120 Metal profiled sheet self-supporting cladding/ roof covering |
SKU Code | W15 |
Product range |
Specification data - Metal profiled sheet self-supporting cladding systems
Classification data | |
Liner sheets | |
Material | 0.4 mm steel, AS20/1000 L profile. Guidance for specification option:
|
Primary fasteners | A4 (316) austenitic stainless steel self-drilling fasteners, Ø 16 mm sealing washers. Guidance for specification option: Gemello® 30 system warranty. Coastal locations. Colour headed A2 (304) austenitic stainless steel self-drilling fasteners, Ø 16 mm sealing washers. Guidance for specification option: Gemello® 25 system warranty. Rural locations. |
End and side laps | NFRC Class A butyl strip, 6 x 5 mm. NFRC Class A butyl tape, 50 x 1 mm. Butyl mastic sealant, Ø 6 mm. Colour headed A4 (316) austenitic stainless steel self-drilling fasteners, Ø 16 mm sealing washers. Guidance for specification option: Gemello® 30 system warranty. Coastal locations. Colour headed A2 (304) austenitic stainless steel self-drilling fasteners, Ø 16 mm sealing washers. Guidance for specification option: Gemello® 25 system warranty. Rural locations. Manufacturer guidanceEnd and side laps shall be sealed in all cases and mechanically fixed where required in accordance with the system configuration and manufacturer’s recommendations. |
Air and vapour control layer | |
Material | Manufacturer guidanceProvide a vapour control layer where the liner sheet cannot be robustly sealed, in accordance with the system configuration and manufacturer’s recommendations. |
Fasteners | Manufacturer guidanceVapour control layers to be mechanically fixed where required, in accordance with the system configuration and manufacturer’s recommendations. |
Sealing | Manufacturer guidanceVapour control layers to be sealed where required, in accordance with the system configuration and manufacturer’s recommendations. |
Spacers | Gridtite Ultra and Gridtite Bar. Guidance for specification option:
Gridtite and Gridtite Bar. Guidance for specification option:
|
Acoustic insulation | Rockwool to BS EN 13501-1:2018, Class A1. Glasswool to BS EN 13501-1:2018, Class A1. |
Thermal insulation | Rockwool to BS EN 13501-1:2018, Class A1. Glasswool to BS EN 13501-1:2018, Class A1. Manufacturer guidanceSystems can be configured to achieve U-values down to 0.14 W/m²K, subject to system configuration and manufacturer’s recommendations. |
Cavity fire barriers | |
Vertical barriers | Not required. Firewall. Guidance for specification option: Where firewall cavity barriers are required, provide arrangements suitable for vertical applications, in accordance with the system configuration and manufacturer’s recommendations. |
External sheets | |
Material | 0.7 mm steel, AS24/1000 W profile. Guidance for specification option:
|
Primary fasteners | Colour headed A4 (316) austenitic stainless steel self-drilling fasteners, Ø 16 mm sealing washers. Guidance for specification option: Gemello® 30 system warranty. Coastal locations. Colour headed A2 (304) austenitic stainless steel self-drilling fasteners, Ø 16 mm sealing washers. Guidance for specification option: Gemello® 25 system warranty. Rural locations. |
Secondary fixings | Colour headed A4 (316) austenitic stainless steel self-drilling fasteners, Ø 16 mm sealing washers. Guidance for specification option: Gemello® 30 system warranty. Coastal locations. Colour headed A2 (304) austenitic stainless steel self-drilling fasteners, Ø 16 mm sealing washers. Guidance for specification option: Gemello® 25 system warranty. Rural locations. |
End and side laps | NFRC Class A butyl strip, 6 x 5 mm. Butyl mastic sealant, Ø 6 mm. Colour headed A4 (316) austenitic stainless steel self-drilling fasteners, Ø 16 mm sealing washers. Guidance for specification option: Gemello® 30 system warranty. Coastal locations. Colour headed A2 (304) austenitic stainless steel self-drilling fasteners, Ø 16 mm sealing washers. Guidance for specification option: Gemello® 25 system warranty. Rural locations. Manufacturer guidanceEnd and side laps to external sheets shall be sealed and mechanically fixed in all cases, in accordance with the system configuration and manufacturer’s recommendations. |
System accessories | Closed cell, cross linked flexible polymer profile fillers. Guidance for specification option: Profile fillers shall be provided where required to close corrugation cavities and maintain continuity of air and weather sealing, in accordance with the system configuration and manufacturer’s recommendations. Closed cell EPDM. Coated steel galvanised flashings to match the colour of the external cladding. Guidance for specification option: Flashings can be manufactured in a range of finishes and designs, in accordance with the system configuration and manufacturer’s recommendations. |
Outer sheet coating | Plastisol PVC(P). Colorcoat HPS200 Ultra®. Colorcoat Prisma®. Colorcoat® LG. Manufacturer guidanceDefine colour in accordance with the manufacturer’s available colour ranges for the specified coating. |
Liner sheet | Polyester SP, white. |
Reaction to fire classification | External Platisol coating to BS EN 13501-1:2018, Class C-s3, d1. External Colorcoat Prisma® coating to BS EN 13501-1:2018, Class A1. |
Sustainability data
Country of product manufacture | United Kingdom |
Material | Steel Guidance for specification option: Coated galvanized steel. Stone wool Glass mineral wool |
Literature
Literature type
Gemello® - System Overview Brochure
Gemello® - Twin Skin System Benefits Brochure
Case studies
How Kingsbarns Turned to Gemello® for a Fast, Durable Solution
How Castle Stuart Golf Links Chose Gemello® for a Robust, Cost-Effective Building Envelope
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